Based on observations obtained at the United Kingdom Infrared Telescope (UKIRT), which is operated by the Joint Astronomy Centre on behalf of the U. K. Particle Physics and Astronomy Research Council.

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In this work we use an abundance scale $\sum N_i$ = 1.

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... spectra

In fact these are spectral energy distributions (SEDs).

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...).

For $\lambda$ > 2.7 $\mu$ m model spectra shown here and in subsequent plots were computed without molecular absorption; i.e, they are continuum fluxes, which provide information about the dependence of the continuum fluxes on input parameters.

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